Spark-arrester.



- D. M. RYAN.

- SPARK ARRESTI-m. v APPLICATION FILED lIOV. 16, 1907.

918;*703. yPatented Apr. 2o, 1909.

nmmlfoz attoamup DANIEL M. RYAN, or CAMBRIDGE, KANsAs.

sPARK-AnREsTER.

No. 918,703. v

Specification of Letters Patent.

Patented April 20, 1909.

Application led November 16, 1907. SeralfNo. l102,561.

To all whom it may concern: j

Be 1t known that l, DANIEL M. RYAN, a

' citizen of the United States, residing at Cri Cambridge, in the county of Cowley and State of Kansas, have invented a new and useful Spark-Arrester, of which the following is a specification.

rlhis invention relates to spark arresters intended primarily for use on locomotive smoke stacks, Vand has for its object to provide an adjustable and removable device of the kind mentioned which may be quickly attached 'to and disconnected from a locomotive smoke stack of any diameter, and operated by a straight'bar leading to the engine cab and within easy reach of the engineer or fireman.

The device is simple, both in construction and operation, and is designed to be carried` above the smoke stack at any suitable disiance'from the top thereof when firing the furnace to prevent cinders andsparksbeing blown high into the air by the exhaust of the engines, thence carried by the wind to inflammable material and thus cause a conflagration. When not required for this purpose the arrester maybe removed from above the smoke stack by a simple movement of the operating rod.

ln theaccompanying drawing: Figure 1 is a side elevation of the spark arrester in position on alocomotive smoke stack. Fig. 2 is a cross sectional view on the line 2-2 ofFig. 1. Fig. 3 is a top plan viewfof the spark arrester. Fig. 4l is a horizontal sectional view on the vline 4 4, Fig. 1. Fig. 5 is a detail view.

Similar reference numerals are used for the same parts on all the figures.

The numeral 1 indicates a circular band for attachment to a locomotive smoke stack of such width and thickness as will best serve the purpose intended, formed of two semi-circular sections 2 and 3 connected at adjoining ends on one side by a hinge 4 and on the opposite side by any suitable means, such for instance, as that shown in the drawings where the semicircular sections are bent outwardly parallel to each other and fastened by bolts 5.

Pivote'd to the band 1 on a diametrical line are two upright arms 6 and 7, the former on the semi-circular section 2 and the locomotive cab, provided with an operating handle 10 on the end and two notches 11 and 12 near thehandle, see Fig. 1. Concentric with the pivot 13 of the arm G is a curved notch 14 at the exterior angle formed by the arm and its extension 8, within which notch is a pin 15 fixed to the band 1 for limiting the movement of the arms 6 and 7.

llhe arms 6 and 7 are of such length as to extend above the top of the locomotive smoke stack and have a configuration such as will permit them to swing on their pivots without touching the stock. Supported on the upper ends of the arms 6 and 7 is a band 16 `perpendicular to said arms and divided or cut through on one'side. A lug 17 projects outwardly from each end of the band at the division, between which is a bolt 18 for drawing the band together. On the inner surface of the divided band 16 is a semicircular or other shaped groove 19 to receive a ring 20 on which a cap screen 21 in the form of a section of a sphere is fixed. The screen, preferably of woven steel wire, can be quickly renewed by loosening the bolt 1S allowing the band 16 to expand, thus letting the ring 20, carrying the old screen drop out of the groove 19 and a new screen be inserted in its place.

A spark arrester constructed as above described is applied to a smoke stack, by removing the bolts 5 and opening the band 1 `sufficiently wide to slip it over the beaded top of the stack 22, or around the stack as found most convenient. The bolts 5 are then tightened and after adjusting the cap screen to the proper height above the stack to give suflicient draft, a plurality of horizontally disposed bolts 23 in the band 1 are turned to cla-mp the spark arrester securely to the stack. The band 1 is made preferably to lit somewhat loosely on the stack 22 so that it may be used on stacks of different diameters, but when wanted, the band can be made small enough to be drawn tightly on the stack by the bolts 5.

When feeding the furnace, and at other times when cinders are being forced out of the stack in a great quantity, the cap screen Where sparks can do no damage, the rod 9 l may be moved to Swing the cap screen into the position indicated by dotted lines, see Fig. l. The notch l1 Will then be engaged with ldie catch mentioned to hold the iod fixed. To prevent the screen being moved tonoV 'tar in either` direction, theV ends of the curved notch 14 will strike the pin 15 and Stop the movement.

Having thus described the invention what is claimed is l. A Spark arrester comprising in combination a sectional clamping band having a pair of diametricallY oppoSed pivot pins, arms mounted on said pins and 'free to Swing between v rtical and inclined positions, a` circular band rigidly Secured to the upper ends of Said arms, a reticiilated screen carried by Said circular band, one ei" Said arma having a downwardly extended member, and an operating device connected to said dovvnwardly extend ed member.

2. A Spark arrester comprising a sectional clamping band having a pair of diametrically7V opposed pivot pins, a pair of arms mounted upon the pivot pins, one of the arms having a forwardly extending portion, ay reticulated screen rigidlyY Secured to the upper ends of Said arms, and means ior limiting the swinging movement of said arms.

3. The combination with a smoke stack, of a spark arrester comprising a screen secured to a circular ring, a clamping band having a groove on its imier side to receive and clamp Said ring, a two-part hinged band adapted to be removably attached to and 'fl- The combination with a smoke stack, oi

a spark arrester comprising a screen Secured at its edgee` to a circular ring. a claniping band having an interior groove to receive and detaclably hold Said ring, a tavoeparl, hinged band adapted to be renio'vabl)7 attached to Said smoke Stack, a plurality olt eet Screws or bolte in Said band arranged to bear on Said Stack, arms depending troni Said clamping band pivotedv to said tivo-part ring, and means 'For swinging said luci-een ali-ove or to one side oi the smoke stack.

n testimoni7 that' 'i claim the foregoing as inv own, .l have hereto ailixed nl v IQgnatnre in the presence of two Witnesses.

DANIEL M. RYAN.

lVitnesSeS J. J'. BENJiuiiN, A. L. FINN-nv. l 

